Encoding vs Modulation - What’s the difference Between Encoding and Modulation?
Encoding vs Modulation Encoding and Modulation are two techniques used to provide the means of mapping information or data into different waveforms such that the receiver (with the help of an appropriate demodulator and decoder) can recover the information in a reliable manner. Encoding is the process by which the data is converted into digital format for efficient transmission or storage. Modulation is the process of converting information (signals or data) to an electronic or optical carrier, so that it can be transmitted to comparatively large distance without getting affected by noise or unwanted signals. HDMI Encoder Modulator,16in1 Digital Headend,HD RF Modulator at Soukacatv.com What is Encoding? Encoding is mainly used in computers, and the process includes arranging a sequence of characters such as letters, punctuation, numbers and certain other symbols into a specialized format for the purpose of efficient transmission and storage. This is a common operation done in most wireless communication systems. Generally, encoded data can be easily reversed by using the technique called decoding. ASCII (American Standard Code for Information Interchange, pronounced ASK-ee) is the encoding scheme widely used by computers for text files. Here, all the characters are encoded using numbers. For example, ‘A’ is represented using number 65, ‘B’ by number 66, etc. ASCII is also used to represent all the uppercase and lowercase alphabetic characters, numerals, punctuation marks, and other common symbols. Unicode, Uuencode, BinHex, and MIME are among other popular encoding methods available. Manchester encoding is a special form of encoding used in data communications, where the transitions of high and low logic states are represented by binary digits (bits). Also, numerous types of encoding schemes are used in radio communications. At times, the term encoding is confused with encryption. Encryption is a process where the character of a text is altered to conceal its content, whereas encoding can be done without intentionally concealing the content. Other typical encoding techniques include Unipolar, Bipolar and Biphase encoding. What is Modulation? Modulation can be simply defined as a way of facilitating the transfer of information over a certain medium. For example, sound generated from our lungs, transmitted through the air can only travel for a limited distance depending on the amount of power we consume.